/// <summary>
/// Gets the final price for a child product by running a nested calculation pipeline.
/// </summary>
/// <param name="childProduct">
/// The child product (e.g. associated product of a grouped product or a bundle item part) to calculate price for.
/// Must not be the same product as <see cref="PriceCalculationContext.Product"/>.
/// </param>
/// <param name="context">The calculator context of the root pipeline.</param>
/// <param name="childContextConfigurer">An optional configurer action for the child context.</param>
/// <returns>The nested calculator context.</returns>
protected async Task <CalculatorContext> CalculateChildPriceAsync(Product childProduct, CalculatorContext context, Action <CalculatorContext> childContextConfigurer = null)
{
if (context.Product == childProduct)
{
throw new InvalidOperationException("The product of a nested calculation pipeline cannot be the same as that of the root pipeline. It would result in a deadlock.");
}
var childCalculatorContext = new CalculatorContext(context, childProduct.Price)
{
Product = childProduct
};
childContextConfigurer?.Invoke(childCalculatorContext);
// INFO: we know that options have been cloned.
if (context.Options.ChildProductsBatchContext != null)
{
childCalculatorContext.Options.BatchContext = context.Options.ChildProductsBatchContext;
}
// Get calculators for child product context
var calculators = _calculatorFactory.GetCalculators(childCalculatorContext);
// Run calculators
await _calculatorFactory.RunCalculators(calculators, childCalculatorContext);
return(childCalculatorContext);
}
/// <summary>
/// Gets the final price for a child product by running a nested calculation pipeline.
/// </summary>
/// <param name="childProduct">
/// The child product (e.g. associated product of a grouped product or a bundle item part) to calculate price for.
/// </param>
/// <param name="context">The calculator context of the root pipeline.</param>
/// <param name="childContextConfigurer">An optional configurer action for the child context.</param>
/// <returns>The nested calculator context.</returns>
protected async Task <CalculatorContext> CalculateChildPriceAsync(Product childProduct, CalculatorContext context, Action <CalculatorContext> childContextConfigurer = null)
{
if (context.Product == childProduct)
{
// TODO: (core) Decent error message for price calculation deadlocking.
throw new InvalidOperationException("Deadlock");
}
var childCalculatorContext = new CalculatorContext(context, childProduct.Price)
{
Product = childProduct
};
childContextConfigurer?.Invoke(childCalculatorContext);
// INFO: we know that options have been cloned.
if (context.Options.ChildProductsBatchContext != null)
{
childCalculatorContext.Options.BatchContext = context.Options.ChildProductsBatchContext;
}
// Get calculators for child product context
var calculators = _calculatorFactory.GetCalculators(childCalculatorContext);
// Run calculators
await _calculatorFactory.RunCalculators(calculators, childCalculatorContext);
return(childCalculatorContext);
}
/// <summary>
/// Gets the final price for a child product by running a nested calculation pipeline.
/// </summary>
/// <returns>The nested calculator context.</returns>
protected async Task <CalculatorContext> CalculateChildPriceAsync(Product childProduct, CalculatorContext context)
{
if (context.Product == childProduct)
{
// TODO: (core) Decent error message for price calculation deadlocking.
throw new InvalidOperationException("Deadlock");
}
var childCalculatorContext = new CalculatorContext(context, childProduct.Price)
{
Product = childProduct,
Quantity = int.MaxValue
};
// INFO: we know that options have been cloned.
childCalculatorContext.Options.BatchContext = context.Options.ChildProductsBatchContext;
childCalculatorContext.Options.IgnoreGroupedProducts = true;
childCalculatorContext.Options.IgnoreBundles = true;
// Get calculators for child product context
var calculators = _calculatorFactory.GetCalculators(childCalculatorContext);
// Run calculators
await _calculatorFactory.RunCalculators(calculators, childCalculatorContext);
return(childCalculatorContext);
}
private async Task <CalculatorContext> RunCalculators(PriceCalculationContext context)
{
Guard.NotNull(context, nameof(context));
// Remember source product.
var product = context.Product;
// Collect calculators
var calculators = _calculatorFactory.GetCalculators(context);
var calculatorContext = new CalculatorContext(context, product.Price);
// Run all collected calculators
await _calculatorFactory.RunCalculators(calculators, calculatorContext);
return(calculatorContext);
}
